DESCRIPTION

Perform bitwise logical operations on integer images.

im_andimage(3)
performs bitwise and between corresponding pixels in a and b, writing the
result to out. Both images must be the same size and have the same number
of bands. They can have any integer type.

im_andconst(3)
performs bitwise and between pixels in a and a single
constant value.
im_and_vec(3)
lets you specify n constants, one per band.